1. Acrosomal abnormality associated with sterility in boar;Bane;Proc. IVth int. Congr. Anim. Reprod., The Hague,1961
2. Blom , E. A. Birch-Andersen The ultrastructure of a new hereditary sterilizing defect (the “DAG-Defect”) in the bull sperm tail Proc. Vth World Congr. Fertil. Steril. 602 605 1966a
3. Blom , E. A. Birch-Andersen The ultrastructure of a sterilizing tail defect (the “DAG-Defect”) in bull sperm Proc. 10th Nord. Vet. Congr. 699 705 1966 b
4. Studies on the composition of epididymal content in bulls and boars;Crabo;Acta vet. scand,1965